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[" 3.If "a,b,c" are in "A.P." ,then show...

[" 3.If "a,b,c" are in "A.P." ,then show that: "],[[" (i) "a^(2)(b+c),b^(2)(c+a),c^(2)(a+b)" are also in A.P."],[" (ii) "b+c-a,c+a-b,a+b-c" are in A.P."],[" (iii) "bc-a^(2),ca-b^(2),ab-c^(2)" are in A.P."]]

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